42 lines
864 B
C#
42 lines
864 B
C#
using System.Collections.Generic;
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namespace MoonTools.ECS.Rev2;
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public ref struct FilterBuilder
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{
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World World;
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HashSet<TypeId> Included;
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HashSet<TypeId> Excluded;
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internal FilterBuilder(World world)
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{
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World = world;
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Included = new HashSet<TypeId>();
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Excluded = new HashSet<TypeId>();
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}
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private FilterBuilder(World world, HashSet<TypeId> included, HashSet<TypeId> excluded)
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{
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World = world;
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Included = included;
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Excluded = excluded;
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}
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public FilterBuilder Include<T>() where T : unmanaged
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{
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Included.Add(World.GetTypeId<T>());
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return new FilterBuilder(World, Included, Excluded);
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}
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public FilterBuilder Exclude<T>() where T : unmanaged
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{
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Excluded.Add(World.GetTypeId<T>());
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return new FilterBuilder(World, Included, Excluded);
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}
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public Filter Build()
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{
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return new Filter(World.EmptyArchetype, Included, Excluded);
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}
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}
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